The James Webb Space Telescope

[pinball1970]

Black spots can represent an image where the detector is saturated at that point. It does not say in the link.

 

[pinball1970]

This is a nice one Pandora's cluster. Bottom right quarter looks like lensing.

 

[BillTre]

DennisN looks at Fomalhaut's Center and Finds Much More (PF, May 12, 2023)

View attachment 326420

View attachment 326421

View attachment 326424

View attachment 326423

Sorry, I could not resist .

So you are imitating an AI which is often thought of as imitating humans.
An interesting twist with a lot of potential applications.

 

[pinball1970]

https://www.space.com/james-webb-space-telescope-earliest-complex-organic-molecules

PAH are important in the RNA OOL mechanism.

https://en.wikipedia.org/wiki/PAH_world_hypothesis

 

[pinball1970]

This yesterday. Barred spiral Galaxy.

 

[phinds]

This yesterday. Barred spiral Galaxy.

The bar is clear enough but I'm not seeing any spirals

 

[pinball1970]

It is close up, panned out you get this

https://en.wikipedia.org/wiki/NGC_5068 @phinds

 

[pinball1970]

This was in universe today. Evidence of population 3 stars using data from JWST

https://arxiv.org/abs/2306.00953

 

[Bandersnatch]

This was in universe today. Evidence of population 3 stars using data from JWST

https://arxiv.org/abs/2306.00953

Breaking news: Scientists find HeII in a galaxy at the edge of the universe!

Somebody hire me as a headline writer. I'll get you all the clicks.

 

[pinball1970]

Breaking news: Scientists find HeII in a galaxy at the edge of the universe!

Somebody hire me as a headline writer. I'll get you all the clicks.

" The very high EW(HeII) suggests that the putative PopIII
stars must have a top-heavy IMF reaching an upper mass
cutoff of at least 500 M⊙."

Anything over this presumably all hell would break loose?

 

[pinball1970]

This reminds me of the famous Hubble deep field, apparently there are 45,000 galaxies in view here which is amazing.

The image is in the link but worth putting on a paste too.

https://www.nasa.gov/feature/goddar...kled-with-bursts-of-star-formation-webb-shows

 

[pinball1970]

This alert today.

Dust with an object in universe today that has one of those symmetrical objects that led to diffraction spike discussion.

https://arxiv.org/abs/2301.10778

Looks similar?

https://www.universetoday.com/162314/supernovae-are-the-source-of-dust-in-early-galaxies/

 

[pinball1970]

@Borg from #386

Looks like dust afterall!

 

[Filip Larsen]

https://www.nasa.gov/feature/goddard/2023/webb-celebrates-first-year-of-science-with-new-image

 

[DennisN]

View attachment 329178
https://www.nasa.gov/feature/goddard/2023/webb-celebrates-first-year-of-science-with-new-image

I was just going to post this, but you beat me to it.

 

[pinball1970]

@Astranut drew my attention to this on X.

 

[pinball1970]

https://webb.nasa.gov/content/webbL...31-23-STScI-01GZY2VJ33V4R0B7QKFEEQ72E1-1k.jpg

If you click on the link and get on image on the NASA site, you can zoom in closer (and closer and closer...)

Some descriptions what is going on with the lensing, dust, distances.

 

[collinsmark]

https://webb.nasa.gov/content/webbL...31-23-STScI-01GZY2VJ33V4R0B7QKFEEQ72E1-1k.jpg

If you click on the link and get on image on the NASA site, you can zoom in closer (and closer and closer...)

Some descriptions what is going on with the lensing, dust, distances.


View attachment 330099

Here's a link to the NASA site with the expandable image:


[Edit: Actually, I see now it's not NASA's site directly, but is NASA's Flikr site. PF won't let me display the link text; it automatically embeds the media. Go ahead and click on it though to be taken to NASA's Flikr area.]

 

[mfb]

@Astranut drew my attention to this on X.

There is a big question mark here. A galaxy-sized question mark, in fact, in the bottom center of the image.

Full picture at ESAWebb

 

[collinsmark]

There is a big question mark here. A galaxy-sized question mark, in fact, in the bottom center of the image.

View attachment 330193

Full picture at ESAWebb

Nice find!

I'm guessing it's some nebulosity within our own Milky Way Galaxy though. A new question mark shape, not to be confused with NGC 7822 (a different question mark).

 

[pinball1970]

A side by with HST , Ring Nebula Messier 57 - links to both images below

https://blogs.nasa.gov/webb/2023/08...icate-details-in-the-remains-of-a-dying-star/

https://esahubble.org/images/heic1310a/

I had the wrong image, it was Webb but this one is better

 

[pinball1970]

https://www.nasa.gov/feature/goddard/2023/webb-reveals-new-structures-within-iconic-supernova

When I saw this image initially, I thought it looked blurred compared to the recent ring nebula images.

However, with a quick check, the Ring Nebula is located a lot closer 2,567 ly and 1.3 ly across, whereas this supernova (SN 1987A) is 168,000 ly distant and 0.6 ly across.

Plus, there is a nice history with this image. https://en.wikipedia.org/wiki/SN_1987A

Neutrinos were observed on earth detectors few hours prior to the super nova according to the article.

Also within that link Hubble took images between 1994 and 2008 showing how it changed over time.

https://en.wikipedia.org/wiki/SN_19...7a_debris_evolution_animation_time_scaled.gif

 

[DennisN]

A brand new video from the Royal Institution...
I haven't seen it myself yet, but I will.
I'm pretty sure it's good.

What has the James Webb Space Telescope discovered in its first year? – with Naomi Rowe-Gurney (14 September, 2023)


And there's also a Q&A here.

 

[pinball1970]

Webb with Chandra C.O. @Astranut (you can post these too fella!)
The detail is pretty stunning, an x-ray/IR combo.
UHZ1 Distant Galaxy and black hole.

 

[pinball1970]

This one is a Hubble-JWST combination. Galaxy Cluster MACS0416

https://www.nasa.gov/missions/webb/...ine-to-create-most-colorful-view-of-universe/

 

[pinball1970]

Picture of the Month from the NASA/ESA/CSA James Webb Space Telescope reveals intricate details of the Herbig Haro object 797 (HH 797)

An explanation of some of the features here https://phys.org/news/2023-11-webb-captures-prominent-protostar-perseus.html

A little more detail with some Hubble images of IC348 star forming region in the below link.

https://en.wikipedia.org/wiki/IC_348

 

[pinball1970]

This thread is two years old tomorrow!

Anyway, Cassiopeia A image by Webb.

Link with all the images here.

https://www.nasa.gov/missions/webb/nasas-webb-stuns-with-new-high-definition-look-at-exploded-star/

From the link.

“Embedded in this gas is a mixture of dust and molecules, which will eventually become components of new stars and planetary systems.
Some filaments of debris are too tiny to be resolved by even Webb, meaning they are comparable to or less than 10 billion miles across (around 100 astronomical units).
In comparison, the entirety of Cas A spans 10 light-years across, or 60 trillion miles.”

I had to read that twice to make sure I had not missed something, so if it is 10 billion miles across it is too small to be picked up by Webb. Given the exquisite detail it is easy to take for granted how enormous these structures are.

The article has a side by side with MIRI, below is a side by side with Hubble, see the difference in resolution/detail.

JWST 2023 HST 2016

 

[Astronuc]

Rings around Uranus
https://esawebb.org/images/weic2332c/

https://cdn.esawebb.org/archives/images/screen/weic2332c.jpg

 

[DennisN]

Rings around Uranus
https://esawebb.org/images/weic2332c/

https://cdn.esawebb.org/archives/images/screen/weic2332c.jpg

...and the photo instantly viewable on PF :

 

[pinball1970]

It is on the NASA front page image today.

 

[BillTre]

It is on the NASA front page image today.

View attachment 337514

Very Spacy!

 

[pinball1970]

Very Spacy!

It doesn't look real does it? More like CGI it is so bright.
Webb is so sensitive it can pick up light from ten billion light years distant

Are all those blobs moons? I will look into it.

 

[pinball1970]

25:12:21 Webb Launch date, so kind of a first day if not a b/day. Happy launch day Webb!

 

[pinball1970]

Oldest Black hole discovered by Webb in the GN-z11 galaxy.

https://phys.org/news/2024-01-astronomers-oldest-black-hole.html

This is the galaxy, you may remember the image as this was a candidate for oldest galaxy discovered by Hubble (also data from CANDLES and GOODS) https://en.wikipedia.org/wiki/GN-z11

HDI is a candidate for the farthest galaxy (Z=13.27). Webb could break its own record if it confirms the distance/red shift and discovers one here too.

https://en.wikipedia.org/wiki/HD1

 

[Tom.G]

That image reminds me of a dog trying to snatch a cookie that was tossed to it!

 

[DennisN]

That image reminds me of a dog trying to snatch a cookie that was tossed to it!

 

[pinball1970]

View attachment 338827

How could anyone refuse that dog a treat?
Some opaqueness in the left eye though?

Next post totally JWST!

 

[pinball1970]

Some early galaxies were elongated according to Webb data.

https://phys.org/news/2024-01-webb-early-galaxies-thin-disk.html

Full access to the paper (preprint)

https://arxiv.org/pdf/2310.15232.pdf

They used analysis of certain parameters to determine galaxy shape (page 26 below)

 

[OCR]

Some early universes galaxies were elongated according to Webb data.

IFYPFY. . . .

.

 

[pinball1970]

IFYPFY. . . .

.

Done!

 

[berkeman]

IFYPFY. . . .

.

TIL that it's pronounced just like it's spelled... "iffy-piffy".

 

[Filip Larsen]

Webb depicts staggering structure in 19 nearby spiral galaxies

 

[pinball1970]

The Horsehead Nebula image from Webb was in the UK metro this morning.

Located in Orion's Belt 1,375Ly from Earth.

All the images in the link and I have pasted a couple.

https://science.nasa.gov/missions/w...nic-horsehead-nebula-in-unprecedented-detail/

A side by side with Hubble and Euclid.

Euclid was launched last July and is also at L2 with Webb and Gaia.

https://www.esa.int/Science_Exploration/Space_Science/Euclid

https://www.esa.int/Science_Exploration/Space_Science/Gaia

 

[DennisN]

There are rumors that 55 Cancri might be one of the first, or even the first, target. It has five known exoplanets, the innermost orbits the star in less than a day.

More recent about 55 Cancri:

Renyu Hu, et. al. "A secondary atmosphere on the rocky Exoplanet 55 Cancrie", 8 May 2024 (Nature)

We are providing an unedited version of this manuscript to give early access to its findings. Before final publication, the manuscript will undergo further editing. Please note there may be errors present which affect the content, and all legal disclaimers apply.

Abstract:

Characterizing rocky exoplanets is a central endeavor of astronomy, and yet the search for atmospheres on rocky exoplanets has hitherto resulted in either tight upper limits on the atmospheric mass ^1–3 or inconclusive results ^4–6. The 1.95-R_Earth and 8.8-M_Earth planet 55 Cnc e, with a predominantly rocky composition and an equilibrium temperature of ~2000 K, may have a volatile envelope (containing molecules made from a combination of C, H, O, N, S, and P elements) that accounts for up to a few percent of its radius ^7–13. The planet has been observed extensively with transmission spectroscopy ^14–22, and its thermal emission has been measured in broad photometric bands ^23–26. These observations disfavor a primordial H2/He-dominated atmosphere but cannot conclusively determine whether the planet has a secondary atmosphere^27,28. Here we report a thermal emission spectrum of the planet obtained by JWST’s NIRCam and MIRI instruments from 4 to 12 μm. The measurements rule out the scenario where the planet is a lava world shrouded by a tenuous atmosphere made of vaporized rock^29–32, and indicate a bona fide volatile atmosphere likely rich in CO₂ or CO. This atmosphere can be outgassed from and sustained by a magma ocean.

and indicate a bona fide volatile atmosphere likely rich in CO₂ or CO

So, maybe lots of soda cans opened there, or lots of combustion engines? Or both?
Seriously, I think it's fascinating.

Edit: The planet in question is 55 Cancri e.

Edit 2:

And an article:

Webb discovers evidence of an atmosphere around a rocky super-Earth planet orbiting a Sun-like star
(BBC Sky At Night Magazine, by Iain Todd, May 8, 2024)

 

[pinball1970]

JWST confirms early galaxy, formed 300 million years after the Big bang.

https://www.cam.ac.uk/research/news...xy-discovered-with-james-webb-space-telescope

 

[Filip Larsen]

JWST confirms early galaxy, formed 300 million years after the Big bang.

NASA blog: https://blogs.nasa.gov/webb/2024/05...ce-telescope-finds-most-distant-known-galaxy/

 

[Astronuc]

NASA’s Webb Reveals Long-Studied Star Is Actually Twins​

https://www.nasa.gov/missions/webb/nasas-webb-reveals-long-studied-star-is-actually-twins/

Scientists recently got a big surprise from NASA’s James Webb Space Telescope when they turned the observatory toward a group of young stars called WL 20. The region has been studied since the 1970s with at least five telescopes, but it took Webb’s unprecedented resolution and specialized instruments to reveal that what researchers long thought was one of the stars, WL 20S, is actually a pair that formed about 2 million to 4 million years ago.

The discovery was made using Webb’s Mid-Infrared Instrument (MIRI) and was presented at the 244th meeting of the American Astronomical Society on June 12. MIRI also found that the twins have matching jets of gas streaming into space from their north and south poles.

The team got another surprise when additional observations by the Atacama Large Millimeter/submillimeter Array (ALMA), a group of more than 60 radio antennas in Chile, revealed that disks of dust and gas encircle both stars. Based on the stars’ age, it’s possible that planets are forming in those disks.

The combined results indicate that the twin stars are nearing the end of this early period of their lives, which means scientists will have the opportunity to learn more about how the stars transition from youth into adulthood.

 

[pinball1970]

A lensed quasar captured by Webb. RX J1131-1231

Z= 0.658, approx 6 Gly from earth.

From https://esawebb.org/images/potm2406a/

“A small image of a galaxy distorted by gravitational lensing into a dim ring. At the top of the ring are three very bright spots with diffraction spikes coming off them, right next to each other: these are copies of a single quasar in the lensed galaxy, duplicated by the gravitational lens. In the centre of the ring, the elliptical galaxy doing the lensing appears as a small blue dot.”

From Wiki

“About a million quasars have been identified with reliable spectroscopic redshifts,[6] and between 2-3 million identified in photometric catalogs.[7][8] The nearest known quasar is about 600 million light-years from Earth. The record for the most distant known quasar continues to change. In 2017, quasar ULAS J1342+0928 was detected at redshift z = 7.54. Light observed from this 800-million-solar-mass quasar was emitted when the universe was only 690 million years old.[9][10][11] In 2020, quasar Pōniuāʻena was detected from a time only 700 million years after the Big Bang, and with an estimated mass of 1.5 billion times the mass of the Sun.[12][13] In early 2021, the quasar QSO J0313–1806, with a 1.6-billion-solar-mass black hole, was reported at z = 7.64, 670 million years after the Big Bang.[14]”

 

[pinball1970]

Happy birthday JWST.

 

[pinball1970]

June 20, 2024, image Serpens nebula, aligned protostar outflows (top left) jets of gas from newborn stars that all slant in the same direction.

More details here
https://webbtelescope.org/contents/...BDWFXD7RP49S8P0B3CF?amp;news=true&user=bjames